Display Screen Support with Mirror-Symmetrical Arms

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Solution Overview

Problem

Existing devices for supporting flat display screens do not allow for unequivocal movement relative to a wall, risking damage to the screen or the wall when pivoting, as they require manual adjustment to avoid contact.

Innovation Solution

A device with a third and fourth arm system in mirror symmetry to the first and second arms, allowing for parallel movement of the display screen relative to the wall, with interconnected cylindrical segments and stops to control pivoting angles and prevent collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display screen is pivoted about the third pivot axis from the position near and parallel to the wall, then the display screen can be positioned at a desired angle, but one end of the display screen would bump against the wall causing risk of damage

Engineering Contradiction:
Improvepivoting motionVSAvoidcollision risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The device performs preliminary action by automatically moving the display screen away from the wall along the first and second arms before allowing pivoting motion about the third pivot axis. This preliminary movement creates sufficient clearance to prevent collision between the display screen and the wall during pivoting operation.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the first and second arms are allowed to freely pivot about the first and second pivot axes, then the arms can be positioned in various configurations, but the arms may be positioned one above another or in line with one another causing ambiguous movement

Engineering Contradiction:
Improvearm positioningVSAvoidmovement predictability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device applies asymmetry by introducing a mirror-symmetrical third and fourth arm system that constrains the first and second arms to specific angular relationships. This asymmetric constraint prevents the arms from positioning one above another or in line, ensuring predictable and unequivocal movement while maintaining adaptability through the mirror-symmetrical design.

Inventive Principle:
Principle #4Asymmetry

3Ease of operation

If a mirror-symmetrical third and fourth arm system is added to ensure unequivocal movement, then the display screen moves predictably away from or towards the wall, but the device complexity increases

Engineering Contradiction:
Improvemovement controlVSAvoidarm configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mirror-symmetrical third and fourth arm system applies asymmetry principles to create a balanced constraint mechanism. By positioning arms symmetrically with respect to a plane of symmetry, the device achieves predictable movement control while the symmetry itself provides structural efficiency that partially offsets the added complexity.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS7571883B2Device suitable for supporting a component
Publication Date: 2009.08.11 VOGELS IP BV
  • US7571883B2 patent drawing
  • US7571883B2 patent drawing
  • US7571883B2 patent drawing

AI summary

A device suitable for supporting a component, such as a flat display screen, which device comprises a first arm, which can be connected to a wall with a first end thereof, being pivotable about a first pivot axis, and which is connected to a first end of a second arm with a second end thereof, being pivotable about a second pivot axis, which second arm can be connected to the component that is to be supported with a second end thereof, being pivotable about a third pivot axis. The device is furthermore provided with a third arm, which can be connected to the wall with a first end, being pivotable about a fourth pivot axis, and which is connected to a first end of a fourth arm with a second end, being pivotable about a fifth pivot axis, which fourth arm can be connected to the component to be supported with a second end, being pivotable about a sixth pivot axis. The third and the fourth arm are substantially in mirror symmetry with respect to the first and the second arm in practically any position of the arms.